kc3-lang/angle/src/libANGLE/renderer/Format.cpp

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• Hash : 30712068
  Author :
  Date : 2016-08-09T11:10:36
  

  Move fast copy functions into angle::Format.
  
  These tables were duplicated in D3D11 and D3D9, and would have to be
  further duplicated into Vulkan.
  
  BUG=angleproject:1455
  
  Change-Id: Ice1b81417d7b14f933b61861c4a9997c260ef72e
  Reviewed-on: https://chromium-review.googlesource.com/367690
  Reviewed-by: Geoff Lang <geofflang@chromium.org>
  Commit-Queue: Jamie Madill <jmadill@chromium.org>
  

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• src/libANGLE/renderer/Format.cpp

• //
  // Copyright 2016 The ANGLE Project Authors. All rights reserved.
  // Use of this source code is governed by a BSD-style license that can be
  // found in the LICENSE file.
  //
  // Format:
  //   A universal description of texture storage. Across multiple
  //   renderer back-ends, there are common formats and some distinct
  //   permutations, this enum encapsulates them all.
  
  #include "libANGLE/renderer/Format.h"
  
  #include "image_util/copyimage.h"
  
  using namespace rx;
  
  namespace angle
  {
  
  namespace
  {
  
  const FastCopyFunctionMap &GetFastCopyFunctionsMap(Format::ID formatID)
  {
      switch (formatID)
      {
          case Format::ID::B8G8R8A8_UNORM:
          {
              static FastCopyFunctionMap fastCopyMap;
              if (fastCopyMap.empty())
              {
                  fastCopyMap[gl::FormatType(GL_RGBA, GL_UNSIGNED_BYTE)] = CopyBGRA8ToRGBA8;
              }
              return fastCopyMap;
          }
          default:
          {
              static FastCopyFunctionMap emptyMap;
              return emptyMap;
          }
      }
  }
  
  }  // anonymous namespace
  
  Format::Format(ID id,
                 GLenum glFormat,
                 GLenum fboFormat,
                 MipGenerationFunction mipGen,
                 ColorReadFunction colorRead)
      : id(id),
        glInternalFormat(glFormat),
        fboImplementationInternalFormat(fboFormat),
        mipGenerationFunction(mipGen),
        colorReadFunction(colorRead),
        fastCopyFunctions(GetFastCopyFunctionsMap(id))
  {
  }
  
  }  // namespace angle
  

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